[Retracted] Remote Evaluation System of Tennis Batting Action Standard Based on Acceleration Sensor

<div>Statistical results of trainees <i>c</i> and <i>e</i> reaching different grades in each evaluation index: (a) the rate at which trainee <i>c</i> achieves each grade in each evaluation indicator and (b) the rate at which student <i>e</i> achieves each grade in each evaluation indicator.</div>

Security and Communication Networks

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Figure 5

Figure 5: [Retracted] Remote Evaluation System of Tennis Batting Action Standard Based on Acceleration Sensor 